For any two portions of fire, small or great, will exhibit the same ratio of solid to void; but the upward movement of the greater is quicker than that of the less, just as the downward movement of a mass of gold or lead, or of any other body endowed with weight, is quicker in proportion to its size.

. . . the man is free, we say, who exists for his own sake and not for another's.

Men pay most attention to what is their own: they care less for what is common; or, at any rate, they care for it only to the extent to which each is individually concerned.

The aim of the wise is not to secure pleasure, but to avoid pain.

Emotions of any kind can be evoked by melody and rhythm; therefore music has the power to form character.

Philosophy is the science which considers truth.

A gentleman is not disturbed by anything